Post Office – Londonderry – Opening Hours & Branch Details You’ll find Post Office situated at a prime place at 3 Custom House Street, about 0.46 miles west of the centre of Londonderry (nearby Millennium Forum and Fy2 / Fy3). The branch essentially provides service to people from the locales of Bogside, Londonderry/derry, Rosemount, Lisnagelvin, Pennyburn, Altnagelvin, Brandywell and Creggan. If you plan to stop by today (Friday), it’s open from 9:00 am – 5:30 pm. Here you’ll find opening hours, local navigation or email info for Post Office Londonderry.